Aspects


vs


Diagram

A diagram is a two-dimensional geometric symbolic representation of information according to some visualization technique.

Erd

Entity Relationship Diagram (ERD) or Entity Relationship Model is a visual representation of the organization of data within databases or information systems

Others

Quality Example
Lower multiplicity

"The circle in erd denotes the lower multiplicity bound of 0 see diagram bellow"

from question "Identifying dependency and composition between entities"

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